In the column “Copy Protection” is always “Yes” denoted. What does it mean, will it not be possible to extract the tracks?

It is possible also to extract copy protected tracks, as the copy protection is only a flag on the CD, and all CD-ROM drives will ignore it on reading. Some month ago there are now also real copy protections for audio CDs, but this information is not given in the table. If there is such a CD, it will show garbage, not extract tracks or probably insert errors in the extraction.